The offender is described as a white, around 6ft 2ins, in his late 20s to early 30s with dark hair.

He was wearing a hooded black “Puffa” style jacket and blue jeans.

Investigating officer, Detective Constable Peter Cave of force CID, based at Reading police station, said: “We believe there are a number of people who have witnessed these assaults and we would ask anyone with information to please come forward.